Precautions

It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects .

Stop using this medicine and call your doctor right away if you have swelling of the face, arms, legs, eyes, lips, or tongue, or problems with swallowing or breathing. These are symptoms of a condition called angioedema .

You may experience lightheadedness during the first few days with this medicine. If this becomes severe and you faint, talk to your doctor right away .

Tell your doctor immediately if you have any signs of infection such as chills, sore throat, or fever. These may be symptoms of an immune system condition called neutropenia .

Using this medicine while you are pregnant can harm your unborn baby. If you think you have become pregnant while using the medicine, tell your doctor right away .

Check with your doctor right away if you have symptoms of jaundice (yellow skin or eyes) because these may be signs of a serious liver condition .

This medicine may increase the amount of potassium in your blood. Do not use salt substitutes containing potassium without first checking with your doctor .

Make sure any doctor or dentist who treats you knows that you are using this medicine. You may need to stop using this medicine several days before having surgery or medical tests .